Sustainable Product Costing (SPC)

With the SPC function, you can calculate alternatives in terms of your CO2 emissions from energy use in order to evaluate a climate-neutral manufacturing alternative.

SPC range of functions

• Calculation of the CO2e emission factor due to indirect emissions from machines

• Administration of location-dependent emission factors for consumption (especially energy costs)

• Simple simulation of indirect emissions and costs when changing location

• Aggregation of emissions over the project structure incl. multi-level project structures

• Project-specific emissions available in Web Reporting

 

Emission Types

With the help of emission types, the CO2 emission caused during consumption or generation is taken into account in the calculation of site costs (consumption costs such as energy, footprint, gas and water costs) and, as a result, in the calculation of machine costs.

Emission types are created in the Data Administration as basis data. In the project and at machines, the valid emission tariff is determined via the selected location.

Further Information see "Administer Master Data" > "Basic Data" > Create emission type

 

Add Emission Types to a Location

Emission types can be used at locations to consider CO2 emissions in the investment and machine hour rate calculation of the project. Thus you can administer consumption tariffs for each location parameter with validities at the location and assign the created emission types.

In the project, the locations subject to emissions can be added via the Project Cockpit where the cost tariffs and emission types can be managed at the location parameters.

 

Use Emission Types in the Machine Hour Rate Calculation

Based on the defined emission types, a CO2e emission factor can be used on standard machines and project-specific machines to determine the amount of greenhouse gases in the machine consumption calculation throughout manufacturing.

The CO2e emission factor forms the sum of the accruing CO2e emission values of all location parameters. The value of the CO2e emission factor is managed at the machine and is later included in the machine consumption calculation at the manufacturing process.

You can have the CO2e emission factor calculated in the Data Administration at the machine properties (and later in the project at the project-specific machine) via the options "calculated" and "manual" to predefine it manually.

 

Determine CO2e Emission Factor at the Machine

The calculated CO2e emission factor is the sum of all CO2e consumptions of the machine.

1. The CO2e consumption of the machine is composed of the individual demand/consumption values of the location parameters at the machine and the CO2e emission factor from the locational emission type, i.e.:

   

   Calculation sample for energy and water cost:

   Demand/Consumption Machine	CO2e Emission Factor Location (Emission Type)	CO2e Consumption Machine
   Energy Demand 52 kW	CO2e emission factor for engery cost 12 g/kWh	Energy 624 g/kWh
   Water Consumption 6 m³/a	CO2e emission factor for water cost 4 g/m³	Water 24 g/m³a

2. The CO2e emission factor forms the sum of the CO2e consumptions of the machine: 648 g/h.

 

Calculate the CO2e Emission Factor at the Manufacturing Process

The calculated or manually entered CO2e emission factor is multiplied in the project by the machine time at the manufacturing process (Advanced, Technology) and results in the CO2e value:

Following the sample calculation:

CO2e Emission Factor Machine	Machine Time at Process	CO2e
648 g/h	180 s/piece (0.05 h/piece)	32.4 g/h

In the project structure, the resulting CO2 emission value CO2e is shown in the cost information at the manufacturing process. If the process contains several machines, all CO2e values are summed up.